diff --git a/labs/L09/spec/loop-arith.spec.js b/labs/L09/spec/loop-arith.spec.js
index 5315819..63f381a 100644
--- a/labs/L09/spec/loop-arith.spec.js
+++ b/labs/L09/spec/loop-arith.spec.js
@@ -4,11 +4,11 @@ describe("add",
 	 function() {
 		it("1 + 1 = 2",
 			function() {
-				expect(arith.add(1, 1)).toBe(2);
+				expect(arith.plus(1, 1)).toBe(2);
 			});
 		 it("0 + x = x",
 			function() {
-				expect(arith.add(0, 1)).toBe(1);
+				expect(arith.plus(0, 1)).toBe(1);
 			});
 	});